Controlling device for swinging doors.



F. A. ANDERSON.

CONTROLLING DEVICE FPR SWINGING DOORS. APPLICATION msu MAY 13. 1915v Panted .1p1-.18,1916.

UNITED STATES PATENT oEEicE.

FREDERICK A. ANDERSON, 0F CHICAGO, ILLINOIS, ASSIGNOR TO FRANK I). CHASE, OF

CHICAGO, ILLINOIS.

CONTROLLING DEVICE FOR SWINGING DOORS.

Specification of. Letters Patent.

Patented Apr. 1s, 1916.

Application flied may 1a, 1915. serial No. 27,765.

soN, a citizen of the United States, and resident of Chicago,county of Cook, and State of Illinois, have invented certain new and useful Improvements in Controlling Devices fonSwin ing Doors, of which the following Ais a speci cation, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates` to controlling devices for swinging doors.

As to certain features of the apparatus shown-herein, this application is a continuation of my application for patent on controlling device for swinging doors, filed Y May 23, 1912, Serial No. 699,210.

Isa

More particularly the invention relates to door checks and closers having provision for holding the door open.

The object of the invention is to provide a door check and closer equipped with latch 'mechanism for holding the door open in any adjusted position and provided with attachments for insuring automatic release of the latch to permit the closing of the door in case of lire.

In the accompanyingdrawings, Figure 1 is a perspective view showing details of a swinging door and of the adjacent parts of a building, the door being equipped with a door check and closer embodying the features of improvement provided by the invention, Fig. 2 is a plan view of the door check and closer illustrated in Fig. 1', details ofV the door and casing also being shown, Fig. 3 is a side elevation showing one of the arms or links of the door check and closer with the associated elements partly in section, a modified application of the apparatus being illustrated, Fig. l is a detail perspective view showing one of the parts 0f the latch mechanism, Fig. 5 is a detail sectional view taken on the line 5-5 of Fig. 1, and Fig. 6 is a detail view partly in section showing lthe manner in which one of the pivot bolts may be secured in place.

A swinging door is represented at 10. One of its hinges is indicated at 11 and details of the door frame or casing and of the ceiling of the room appear at 12 and 13, respectively.

In carrying out the invention, a door check and closer device comprising a frame or casing 1l, a spring actuated spindle 15,'

an arm 16, and a link 17 is preferably employed. In the arrangement shown, the

casing 14 is attached to the door 10. The I' arm 16 is mounted upon the spindle 15 in the usual way and the link 17 extends between the outer end of the arm 16 and a bracket 18 which is secured to the door frame or casing 12 above the door opening. These parts serve for closing the door without slamming, in a well known manner.

The door is held open by a latch which serves to prevent relative movement between the several parts of the door check and closer device. In the preferred arrangement this latch is so constructed as to serve only for restraining the automatic movement of the parts of the door check and closer device and yields to a forcible initial closing movement of the door. As shown, the latch comprises a swinging latch arm 19 and abutment 20, the latter being adjustable t0 provide for the operation of the latch to hold the door open in any selected position.A The latch arm 19 is pivotally mounted upon the link 17 For this purpose the latch arm is secured against the under side of the link 17, intermediate its ends, as by f a pivot bolt 21 which passes vertically through the' latch arm and through the llnx. To limit the swinging of the latch arm 19 in one direction, a stop lug 22, isvdesirably formed upon the underside of the link 17. IVhen the latch arm, as 19, is mounted on the link 17, the latch abutment, as 20, is desirably carried by the arm 16. In this instance the abutment 20 is mounted upon the outer end of the arm 16, in line with the* pivotal connection of the arml16 and link 17, and projects into the angle between these parts. The position of the abutment arm 20 is adjusted by forming the contiguous parts of this element and the arm 16 with complementary toothed surfaces, as 23. Then this is done, the pivot bolt, as

link 1T. is provide-l \\ith iin annular shoulder 2.3. AThe lioli' l thu `\erve l to tirmly chimp the alasttnent i() upon the end ot the arm 1V. in ;in v angularlv adjusted position without interfering with the swinging ot the link 1T upon the holt as a pivot.

The lateh arm llireontrolled h'vatspring. as Lili. rl"his spring normally reacts upon one end of the latt'h arm for holding,- the arm against the stop lug 22. The other end ot' the latch arm lt) is formed with a latera projet-tion T l'or eoiperating with the abutmeut 2U. ln. order that the latch arm l5) may vviehl to permit the passage of the abutment ill. upon the applieation of sutlieient force in hoth the opening?r and closing movements nl' the door. hoth faee ol' the lateral projection T are rounded as indicated at 2S :Uitl 29. Fig. 2.

The releiiSe ot' the hitch :i1-1n l?) in case of lire is: aeeomplished hv providing :in anchor for the pring )li in whii'h ii t'iisihle lilik. ai Sill :ind Ill. i5 employed.. l illu irate the ii e of two iieh linkS. ln that raw the link Ilo erve.- l'or the rel use ot' the hiteh in event heated air eurrent 4 pase'. through tlel door opening. The link Ill. erve to releaee the lateh :is heat air arennmlate adiai'ent the veiling lil. ..\s K hown. a hell Prank level' 3L is pivotallv mounted upon. the link li ailjaeent it inner end. tlexihle t'onneetor "Il in wliii'h the tuilile link l'l in interpoeed unite one arm. as 'll'i. of the oell Crank lever Ir.) with the priiig 21'. 'The other arm. as SlT. ot' the hell erank lever IL extendslieloiv tht' pivot holt` 1i l ill. whit'li .-erve for eimnet'ting the link li with the liraeket lv". ll'hen the two linsihle linke. as. il() and 3l. are hoth emploved. the pivot holt Ill. is fle ir ahlil nniile tulluiar. ftlexilile t'onneetei.' il ineluding the liisilile lilik ill and` it dented. a pring ISV'. is extended through the hote ol' the holt Ill :ind eonneet the arm ZET ot' the hell erank lever Il! with the Ceiling lil. All"v the l'usihle link Il() i5 alone to he relied upon t'or the release ot' the lateh arm 19 in rase of lire. the arm lli 'ot' the `nell frank lever 232 ma)v he rigidl)v secured against the lower end of the pivot holt 'l-l. as h v :in eve-liolt 23S (.Fig. 3) which is hoolv'ed into the arm 3T ot' the hell crank lever and extends through the bore ot the pivot holtI Ill. ln

` either ease displacement ot' the pivot holt 3l is conveniently prevented hv the use of a pin 39 wliieh pasxetl through the link 1.7 and entersl a ,notch l() formed in the side ot the pivot holt vlintermediate it.`l ends.

The pring tor aetuating the spindle l5 ma)` he otl an'v well knovn form and is hoii etl within the eaxing ll, lt is indimited in the drnwingsJ at 41.

l claim as inv invention.-Y

l. .ln eomhinzitinn with wringing door and it;` emiug. :i pair of pivoallv vnunet-ted partb having a epring artiiattfl relative ,-;\vinging naoiement l'or elosing'th'e do r and one of :ziiil purthl lit-ing piiotall'v '-ittzifhe-l to the door easing. a :lett-nt niovahly mounted on `'the hiet mentioned un of Said parti. an elaatie eonneetion hetween the iletent and a lixetl support eltentling in line with the :iXih ot pivotal attachment ot" the part on whieh the detert is ii-"itefl t i the door easing. and a stud in-.nnted on the other one ot' the lint mentioned parte Coriperating with the iletent to hohl th'A lirSt mentioned part` against relative movement.

2. .ln combination with a swinging door and its easing. a piiir ot' pivolaltv ef-.nneetetl parts having e. pi'ing actuated relative .mvinging movement tor elo ing the ile-or and one ot :mid parte. heing pivfnall) attzehed to the door easing. a detent ahlv `mounted on the last mentioned one olf raial Darts. a thermallv eont'rolled el-.i.tie \.;=nj.- tion hetn'een the leteut ati-:l 1i livel enppnr. extending in line with the` a.vi\ ot' pitetal attachment ot the part on whirh the :lett-nt is mounted to the` door tuning. ani! :i stud mounted on the other one of the tiryt uien` tioned partel eoiiperating with the len-ni io hold the tiret mentioned part agaiiet i tive movement.

il. ln eomhination. withn -mwnifgfing vlooi' and its eiwing. a pair of pivotalljv` wnneeted parts having a spring avtuated relative A winging movement for elof-iug the door :ind one of said parts heing pivotallv attiiliihl to the door easing. :i detent mov mounted on the hint mentioned one parts. an ehwtiteoniwi-iion lietween tent and` :i lifted support extending in =i past on whieh the lt-tent is inountif-,l to t t door towing. and :i :tud adiu iahtv niiuintr-l .on the other one ot the lirst mentioned parts ("oiiperating with the detent to hohl the ir t mentioned parl against relative movenwnt.

4. ln eomhination with a \.vinging door. and iix easing. a pair of pi\otallj-.' -eied parte' having a spring' aetnxiteil i-;..itive '\\'inging movement li. losing the floor and one of `aid parts heilig pivotallv attaehed to the door easing. :i lett-nt inovahlfv mounted on the hist mentioned one ot said parts. a thernnillv controlled elaStie eoune tion between the detent and a fixed support extending in line with the lixis of `iivtital attachment of the part on whit-ii the deten is mounted to the door easing. :intl a `intl adjuztahlv mounted on the other one it the lit-st mentioned parte cooperating with the detent to hold the tiret mentioned parts against relative movement.

5. ln eomliination. with i .ovine 'sollt and it easing. a pair ot' pivoti. eetril pni'fS ltx"ln ;i r'pt'tng egt 2 ewinging mo. mit for losing the f not. a tu'nnlar pivot hoh attzifi parte to the loer 'cui crank lever both movably mounted on the last mentioned one of said pivotally connected parts, u stud .mounted on the other one of the said pivotully connected parts, and coperating with the detent to hold the 'pivotally rconnected l parts against relative movement, and a pair of thermally con- FREDERICK A. ANDERSON. 

